I just updated my Photoshop yesterday late morning and from there on it is not working! I have tried to uninstall the current version and the app altogether. The error I received is attached below.
Yes @Grant P. you mention that you tried to uninstal Ps, so let's go higher and do a clean install of CC, then install Ps and see if we can get you back up and running.
I just tried this method and it states it cannot uninstall as i have over cc applications running in the background. I currently have no CC apps running. Please advise